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Triglochin maritima
COMMON ARROW-GRASS

Higher Taxonomy
Family: JuncaginaceaeView Description 

Common Name: ARROW-GRASS FAMILY
Habit: Annual, perennial herb, rhizomed or dense-tufted, terrestrial or aquatic. Leaf: generally +- basal, alternate, +- flat to narrow-cylindric; sheath open, generally liguled. Inflorescence: spike or generally +- scapose raceme; bracts 0. Flower: generally bisexual; perianth parts generally 6 in 2 whorls (0, 1) [3, 4], free, scale-like, +- green or tinged +- red-purple; stamens 0, 1, 3, or 6, filaments short, +- fused to perianth; pistil 1, carpels 1, 6 [3, 4], +- fused, separating in fruit [or not], each with 1 chamber and 1 ovule or 3 carpels fertile, 3 sterile, placentas basal, stigmas generally +- sessile. Fruit: achene or generally mericarps.
Genera In Family: 3 genera, 30 species: temperate, circumboreal, Australia, southern Africa, South America. Note: Lilaea included in Triglochin.
eFlora Treatment Author: David J. Keil
Scientific Editor: Thomas J. Rosatti.
Genus: TriglochinView DescriptionDichotomous Key

Common Name: ARROW-GRASS
Habit: Plant +- glabrous. Leaf: basal, +- tufted; sheath membranous; ligule tip entire to 2-lobed [0]. Flower: perianth parts generally adaxially concave; anthers +- sessile; stigma papillate or +- plumose. Fruit: achene or generally 3, 6 mericarps. Seed: 1, linear, +- flat or angled.
Species In Genus: +- 20 species: temperate, circumboreal, Australia, southern Africa, South America. Etymology: (Greek: 3 points, from fruits of some) Toxicity: TOXIC when fresh, from cyanogenic compounds.

Triglochin maritima L.
NATIVE
Habit: Perennial herb (1)4--11 dm, dense-tufted; rhizomes stout. Leaf: 1--8 dm, generally 2--5 mm wide, +- elliptic in ×-section; ligule (1)1.5--5 mm, tip entire to +- notched. Inflorescence: aerial raceme, generally > leaves; pedicels 3--6 mm in fruit, ascending. Flower: perianth parts generally 6, +- 2 mm; stamens generally 6; fertile carpels 6. Fruit: mericarps 6, 3--8 mm, fully separating, abaxially smooth or weak-ridged. Chromosomes: 2n=12,24,30,36,48,60,120,144.
Ecology: Coastal salt marshes, interior saline, brackish, alkaline marshes; Elevation: < 2800 m. Bioregional Distribution: NCo, KR, CaRH, SN, sw ScV, CCo, SnFrB, SCo, SnBr, GB; Distribution Outside California: circumboreal, South America. Flowering Time: Apr--Aug
eFlora Treatment Author: David J. Keil
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Previous taxon: Triglochin concinna var. debilis
Next taxon: Triglochin palustris

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Citation for this treatment: David J. Keil 2016. Triglochin maritima, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=47197, accessed on May 25, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 25, 2016.


Triglochin maritima
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© 2009 Barry Breckling
Triglochin maritima
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© 2008 Steve Matson
Triglochin maritima
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© 2008 Steve Matson
Triglochin maritima
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© 2006 Aaron Schusteff
Triglochin maritima
click for enlargement
© 2006 Aaron Schusteff
Triglochin maritima
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© 2009 Lech Naumovich

More photos of Triglochin maritima in CalPhotos


Geographic subdivisions for Triglochin maritima:
NCo, KR, CaRH, SN, sw ScV, CCo, SnFrB, SCo, SnBr, GB;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.